URL
https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [doc/] [html/] [ref/] [posix-input-and-output.html] - Rev 174
Compare with Previous | Blame | View Log
<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >Input and Output [POSIX Section 6]</TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="eCos Reference Manual" HREF="ecos-ref.html"><LINK REL="UP" TITLE="POSIX Standard Support" HREF="posix-standard-support.html"><LINK REL="PREVIOUS" TITLE="Files and Directories [POSIX Section 5]" HREF="posix-files-and-directories.html"><LINK REL="NEXT" TITLE="Device and Class Specific Functions [POSIX Section 7]" HREF="posix-device-and-class-specific-functions.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >eCos Reference Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="posix-files-and-directories.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 31. POSIX Standard Support</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="posix-device-and-class-specific-functions.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="POSIX-INPUT-AND-OUTPUT">Input and Output [POSIX Section 6]</H1 ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN13062">Functions Implemented</H2 ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" >int dup( int fd ); int dup2( int fd, int fd2 ); int close(int fd); ssize_t read(int fd, void *buf, size_t nbyte); ssize_t write(int fd, const void *buf, size_t nbyte); int fcntl( int fd, int cmd, ... ); off_t lseek(int fd, off_t offset, int whence); int fsync( int fd ); int fdatasync( int fd );</PRE ></TD ></TR ></TABLE ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN13065">Functions Omitted</H2 ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" >int pipe( int fildes[2] ); int aio_read( struct aiocb *aiocbp ); // TBA int aio_write( struct aiocb *aiocbp ); // TBA int lio_listio( int mode, struct aiocb *const list[], int nent, struct sigevent *sig); // TBA int aio_error( struct aiocb *aiocbp ); // TBA int aio_return( struct aiocb *aiocbp ); // TBA int aio_cancel( int fd, struct aiocb *aiocbp ); // TBA int aio_suspend( const struct aiocb *const list[], int nent, const struct timespec *timeout ); // TBA int aio_fsync( int op, struct aiocb *aiocbp ); // TBA</PRE ></TD ></TR ></TABLE ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN13068">Notes</H2 ><P ></P ><UL ><LI ><P > Only the <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >F_DUPFD</I ></SPAN > command of <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >fcntl()</I ></SPAN > is currently implemented. </P ></LI ><LI ><P > Most of the functionality of these functions depends on the underlying filesystem. </P ></LI ></UL ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="posix-files-and-directories.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ecos-ref.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="posix-device-and-class-specific-functions.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Files and Directories [POSIX Section 5]</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="posix-standard-support.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Device and Class Specific Functions [POSIX Section 7]</TD ></TR ></TABLE ></DIV ></BODY ></HTML >